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Title: Impedance sensing of flaws in non-homogenous materials

An apparatus and method for sensing impedances of materials placed in contact therewith. The invention comprises a plurality of drive electrodes and one or more sense electrodes. Both rotating electric fields and differently shaped electric fields are provided for, as are analysis of structure and composition at different orientations and depths.
Inventors:
 [1]
  1. (Albuquerque, NM)
Issue Date:
OSTI Identifier:
870828
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
Patent Number(s):
US 5602486
Contract Number:
AC04-76DP00789
Research Org:
AT & T CORP
Country of Publication:
United States
Language:
English
Subject:
impedance; sensing; flaws; non-homogenous; materials; apparatus; method; impedances; placed; contact; therewith; comprises; plurality; drive; electrodes; sense; rotating; electric; fields; shaped; provided; analysis; structure; composition; orientations; depths; contact therewith; electric field; electric fields; rotating electric; shaped electric; /324/

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